255516265 has 16 divisors (see below), whose sum is σ = 315972432. Its totient is φ = 198215424.

The previous prime is 255516263. The next prime is 255516271. The reversal of 255516265 is 562615552.

It can be written as a sum of positive squares in 8 ways, for example, as 16999129 + 238517136 = 4123^2 + 15444^2 .

It is a cyclic number.

It is not a de Polignac number, because 255516265 - 2¹ = 255516263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255516263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56467 + ... + 60823.

It is an arithmetic number, because the mean of its divisors is an integer number (19748277).

Almost surely, 2^255516265 is an apocalyptic number.

It is an amenable number.

255516265 is a deficient number, since it is larger than the sum of its proper divisors (60456167).

255516265 is a wasteful number, since it uses less digits than its factorization.

255516265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4716.

The product of its digits is 90000, while the sum is 37.

The square root of 255516265 is about 15984.8761333956. The cubic root of 255516265 is about 634.5602303620.

The spelling of 255516265 in words is "two hundred fifty-five million, five hundred sixteen thousand, two hundred sixty-five".